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The Southern Ocean and Its climate in CCSM4

journal contribution
posted on 2023-05-19, 09:05 authored by Weijer, W, Bernadette SloyanBernadette Sloyan, Maltrud, ME, Jeffrey, N, Hecht, MW, Hartin, CA, van Sebille, E, Wainer, I, Landrum, L
The newCommunityClimate SystemModel, version 4 (CCSM4), provides a powerful tool to understand and predict the earth’s climate system. Several aspects of the SouthernOcean in the CCSM4 are explored, including the surface climatology and interannual variability, simulation of key climate water masses (Antarctic Bottom Water, Subantarctic Mode Water, and Antarctic Intermediate Water), the transport and structure of the Antarctic Circumpolar Current, and interbasin exchange via the Agulhas and Tasman leakages and at the Brazil–Malvinas Confluence. It is found that the CCSM4 has varying degrees of accuracy in the simulation of the climate of the Southern Ocean when compared with observations. This study has identified aspects of the model that warrant further analysis that will result in a more comprehensive understanding of ocean– atmosphere–ice dynamics and interactions that control the earth’s climate and its variability.

History

Publication title

Journal of Climate

Volume

25

Issue

8

Pagination

2652-2675

ISSN

0894-8755

Department/School

Institute for Marine and Antarctic Studies

Publisher

Amer Meteorological Soc

Place of publication

45 Beacon St, Boston, USA, Ma, 02108-3693

Rights statement

? 2012 American Meteorological Society

Repository Status

  • Restricted

Socio-economic Objectives

Antarctic and Southern Ocean oceanic processes

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